Concentric Stacked Knob Set, With Set Screws, Black.
Top Knob - Inside diameter .192", 3/4" diameter, 1/2" tall.
Bottom Knob - Inside diameter .272", 1" diameter, 3/8" tall.

Concentric pots to fit - EP 4585-000 250K/500K; EP 4586-000 500K/500K

General Return Policy

Returns, refunds, or credits may be accepted or issued within 90 days of the original purchase date, provided the product is returned in its original packaging with a Return Form and copy of the customer's invoice or invoice number. Opened items are subject to restocking fee of 15%.  Customer is responsible for return shipping fees.

Defective merchandise may be returned up to one year from the date of purchase provided no alterations have been made. Invoice number must be provided.

Customers who have purchased Allparts products from an Allparts dealer must return their products to that specific dealer.

Sale and Closeout products may be sent back  for exchange or store credit only; no refunds.

Return Form
To return any products from your order, please print and fill out a return form and include it with your return package.  Only one return form is necessary.
   - Download Return Form